Patent No. EP3177645 (titled "Subcutaneously Administered Bispecific Antibodies For Use In The Treatment Of Cancer") was filed by Lindhofer on Aug 10, 2015. The application was issued on Feb 17, 2021.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative |
|---|---|---|
| ABBVIE | Nov 17, 2021 | MEWBURN ELLIS |
| DR H ULRICH DORRIES | Nov 17, 2021 | DORRIES |
| DR H ULRICH DORRIES | Nov 17, 2021 | DORRIES, HANS ULRICH , DF-MP DORRIES FRANK-MOLNIA & POHLMAN |
| GENMAB | Nov 17, 2021 | J A KEMP |
| LAVA THERAPEUTICS | Nov 17, 2021 | COOLEY UK |
| MORPHOSYS | Nov 17, 2021 | SPILLER |
| BOEHRINGER INGELHEIM | Nov 16, 2021 | HOFFMANN EITLE |
| JAMES POOLE | Nov 16, 2021 | CARPMAELS & RANSFORD |
| F HOFFMANN LA ROCHE GENENTECH | Nov 15, 2021 | MEWBURN ELLIS |
| REGENERON PHARMACEUTICALS | May 26, 2021 | CARPMAELS & RANSFORD |
| JANSSEN BIOTECH | Mar 16, 2021 | CARPMAELS & RANSFORD |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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